Towards Understanding How Readers Integrate Charts and Captions: A Case Study with Line Charts

Towards Understanding How Readers Integrate Charts and Captions: A Case Study with Line Charts
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了解读者如何整合图表和标题:折线图案例研究

DOI:
10.1145/3411764.3445443
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发表时间:
2021
期刊:
Proceedings of the 2021 CHI Conference on Human Factors in Computing Systems
影响因子:
--
通讯作者:
Agrawala, Maneesh
Agrawala, Maneesh
中科院分区:
--
文献类型:
--
作者:
Kim, Dae Hyun;Setlur, Vidya;Agrawala, Maneesh

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图表通常包含视觉上突出的功能,这些功能可以引起对数据各个方面的注意,并包含强调数据各个方面的文本标题。通过一项众包研究,我们探讨了读者在考虑图表和标题时如何收集外卖。我们首先要求参与者在一组折线图中标记视觉上突出的区域。然后,我们根据突出特征生成文本标题,并要求参与者在观察图表标题对后报告他们的外卖。我们发现,当图表和标题都描述了一个高显著性的功能,读者把双重强调的高显著性的功能作为外卖;当标题描述了一个低显著性的图表功能,读者依赖于图表,并报告一个较高的显著性的功能作为外卖。我们还发现,提供上下文的外部信息有助于进一步向读者传达标题的信息。我们使用这些发现来提供指导方针,创作有效的图表标题对。
Charts often contain visually prominent features that draw attention to aspects of the data and include text captions that emphasize aspects of the data. Through a crowdsourced study, we explore how readers gather takeaways when considering charts and captions together. We first ask participants to mark visually prominent regions in a set of line charts. We then generate text captions based on the prominent features and ask participants to report their takeaways after observing chart-caption pairs. We find that when both the chart and caption describe a high-prominence feature, readers treat the doubly emphasized high-prominence feature as the takeaway; when the caption describes a low-prominence chart feature, readers rely on the chart and report a higher-prominence feature as the takeaway. We also find that external information that provides context, helps further convey the caption’s message to the reader. We use these findings to provide guidelines for authoring effective chart-caption pairs.
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